Riparian plantings help remove nitrates from waterways, through the addition of organic matter and the process of denitrification.
This video highlights the ecological value of planting both sides of a waterway.
Riparian planting helps filter sediment from overland runoff before it enters waterways.
While doing some post-restoration monitoring in Cashmere Stream, Derek Gerber spotted this lamprey returning from the sea to spawn.
This is Avon Park, where Christchurch City Council has recently completed a major project to re-engage the river with its floodplain.
Drop below the surface to see what these kōura (freshwater crayfish) get up to.
Stormwater wetlands are designed to capture runoff and reduce flooding, but they can also provide habitat for native freshwater fish, birds, and aquatic invertebrates.
Restoring a stream sometimes means adapting the design to what is uncovered along the way.